CVE-2021-32694 Malicious Android application can crash the Nextcloud Android Client
A malicious Android app can crash the Nextcloud Android Client via an uncaught exception, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-32694?
CVE-2021-32694 is a medium-severity denial of service vulnerability in nextcloud security-advisories, published on 17 Jun 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Nextcloud Android app is the Android client for Nextcloud. In versions prior to 3.15.1, a malicious application on the same device is possible to crash the Nextcloud Android Client due to an uncaught exception. The vulnerability is patched in version 3.15.1.
Weakness: CWE-248
Which versions are affected by CVE-2021-32694?
1 open source package ship an affected version, including nextcloud. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
nextcloud Bitnami | All versions | 3.15.1 |
Products include Nextcloud Nextcloud.
How do I fix CVE-2021-32694?
Upgrade nextcloud to 3.15.1 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-32694 being exploited?
There is no known exploitation of CVE-2021-32694 in the wild and no public exploit code.
Other vulnerabilities in nextcloud security-advisories
- CVE-2019-5454 SQL injection in com.nextcloud.client
- CVE-2021-43863 SQL Injection in FileContentProvider (GHSL-2021-1007)
- CVE-2019-5450 Cross-site scripting in com.nextcloud.client
- CVE-2019-5455 Auth bypass in com.nextcloud.client
- CVE-2021-22905 Information disclosure in Nextcloud Android App (com.nextcloud.client)
Sources
Also known as BIT-nextcloud-2021-32694, GHSA-h2gm-m374-99vc.